Paperboard carton



y 18, 1965 A. w. PETERSON 3,184,140

PAPERBOARD CARTON Filed May 16, 1963 3 Sheets-Sheet l y 8, 1965 A. w. PETERSON 3,184,140

PAPERBOAR D CARTON Filed May 16, 1963 3 Sheets-Sheet 2 I I I I f I I I I I I I 4 [III/IIIII"IIII.IIIII/ May 18, 1965 A. w. PETERSON PAPERBOARD CARTON 3 Sheets-Sheet 5 Filed May 16, 1963 United States Patent 0 3,134,140 PAPERBOARD CARTON Arthur W. Peterson, 5035 S. Laramie Ave, Chicago, Ill. Filed May 16, 1963, Ser. No. 28%,789 13 Claims. (til. 229-23) This invention relates to a paperboard carton and more particularly to a sturdy and easily assembled carton made from a minimum of paperboard material.

In the presentday construction of paperboard cartons that are shipped fiat to the user of the carton (see FIG. 11), a single paperboard panel is used. This panel is slit by the manufacturer to produce four flaps at either side of the carton and the panel is scored to permit the subsequent folding of the flaps to form the carton. The manufacturer also makes what is referred to in the art as the manufacturers joint which comprises folding the panel so that a joining tab at one end of the panel can be overlapped by the opposing end of the panel and the overlapping portions secured together by taping, stitching, or gluing. The partly formed carton is sent to the user who must then fold the flaps at one side of the carton and secure them to one another. After filling the carton, the user must fold the remaining four flaps and secure them by gluing, stapling, or taping.

In my new carton construction, the assembly operations take far less time than those described above for the present-day cartons.

In addition, my invention results in a substantial saving in material in that the inner flaps of the present-day cartons are eliminated.

My invention results in a much tighter carton because, in the present-day cartons, unless the seams are taped, there is a small slit actually opening into the interior of the carton, and my new carton also has two large, un-

broken surfaces for printing.

Also, there is a slight gain in the usable interior volume of my new carton because of the elimination of the inner end flaps, and to that extent, the shipping weight of the cartons is also reduced.

In the preferred embodiment of this invention, the carton is composed of a first paperboard panel providing a top wall, a bottom wall, and a side wall and a second paperboard panel providing a suflicient number of side walls to form a completely closed carton. If a rectangular carton is desired, as shown in FIGURE 1, each of the panels is of rectangular shape so that there is no waste material. While both panels require scoring, neither of them need be slit or notched as is required in present-day cartons. Self-adhering liquid latex is used to construct the carton. This glue may be applied either by the manufacturer of the carton or by the user of the carton. In the case where the manufacturer ships the carton to the user in the form of two fiat panels, the user then applies the glue in a peripheral band to one surface of the first panel end to the edge of the second panel.

The user assembles the carton by placing the first panel on a flat surface with the glued surface up, and preferably this is done in a jig which is U-shaped to receive one end of this first panel and acts as a guide for placing the second panel which will form the side walls of the carton. The second panel is then folded at its score lines into a U-shape and placed on the first panel with the open side facing toward the center of the first panel and simply pressed down causing the second panel to be jointed to one end of the first panel. The first panel is then folded upwardly to bring the side wall portion thereof into contact with the ends of the second panel which will then result in a completely formed carton with the top wall open. The carton may then be filled and the top wall is simply pressed down to close and seal the carton.

ice

It is the primary object of this invention to provide a new and improved paperboard carton construction.

Another object of the present invention is to provide a carton in which the construction operations require far less time than the construction operations described above for the present-day cartons.

Another object of this invention is to provide a carton construction which results in a substantial saving in material.

Still another object of this invention resides in providing a carton which can be shipped to the user in flat form and easily assembled by the user.

Another object of this invention is to provide an improved carton which can be assembled by the manufacturer and nested into a similar carton for shipping to the user.

Further objects and advantages will become apparent from the following detailed description taken in connection with the accompanying drawings in which:

FIGURE 1 is a perspective elevational view of a preferred embodiment of the paperboard carton in both completed and partially assembled condition, looking toward a front corner thereof.

FIGURE 2 is an enlarged perspective view of the unassemoled components of the carton of FIGURE 1;

FIGURE 3 is an enlarged perspective view of a carton having modified fastening means;

FIGURE 4 is a fragmentary view showing a modified fastening means;

FIGURE 5 is a. perspective view of a modification of the present invention;

FIGURE 6 is a sectional view taken along line 6--6 of FIGURE 5;

FIGURE 7 is a sectional view taken along line 77 of FIGURE 5;

FIGURE 8 is a perspective elevational view of a modified form of the present invention;

FIGURE 9 is a perspective elevational view of a n1odi fied form of the present invention;

FIGURE 10 is a perspective elevational view of another modification of the present invention;

FIGURE 11 is a perspective elevational view of a partially assembled present-day carton;

FIGURE 12 is a perspective elevational view of still another modification of the present invention;

FIGURE 13 is a perspective view of the unassembled components of the carton of FIGURE 12; and

FIGURE 14 is a perspective view or" several of the cartons of FIGURE 12 nested together.

While this invention is susceptible of embodiment in many different forms, there is shown in the drawings and will herein be described in detail an embodiment of the invention, together with several modifications thereof, with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the invention to the embodiments illustrated. The scope of the invention will be pointed out in the appended claims. I

A preferred embodiment of this invention, comprising a carton generally shown at Iii in FIGURE 1, is formed from a first panel, shown generally at 12, and a second panel, shown generally at 14. The first panel 12 provides a top wall 12, a bottom wall 13, and a side wall 28 of the carton It). In the rectangular carton illustrated in IGURES l and 2, the second panel 14 provides the three remaining side walls 22, 2d and 26, necessary for forming the completely closed carton.

The panel I2 has score lines 28 and 30' which delineate the top wall 16, the bottom wall 18, and the side wall 29 of the resulting carton. Panel 14 is also suitably scored to facilitate the folding of the panel into a U-shape 3 3 constituting the three remaining side walls 22, 24, and 26 of the completed carton.

The panel 12 has a peripheral band of self-adhering liquid latex glue 32 applied to one surface. This band of glue is substantially the same width as the thickness of the second paperboard panel 14. The second panel 14 has this same self-adhering glue 32 applied to its entire peripheral edge 34.

This so-called self-adhering liquid latex glue is well known in the glue manufacturing industry by a variety of tradenames. The glue is such that in its liquid state it will adhere to the paperboard, but it will not adhere in its dry state to the paperboard or to anything else. However, when two surfaces bearing this glue in a dry state are brought together, the adhere very tightly.

The carton is assembled simply by folding the panel 14 into a U-shape shown in FIGURE 2 and pressing it down onto the glue-bearing surface of panel 12 with the closed end of the U registering with one end of panel 12. The remaining portion of panel 12 is then folded up as shown in FIGURE 1 with the side wall portion pressed against the ends of side walls 22 and 26, thereby completing the carton except for closing the top wall 16 after the carton has been filled. To close and seal the carton, the top wall 16 is merely pressed down onto the glue-bearing edge of side walls 22, 24 and 26.

Instead of using self-adhering liquid latex glue having the characteristics described above, a modified form of the invention as shown in FIGURE 3 utilizes a protective tape to cover an adhesive glue during shipping to prevent the panels from sticking together. When the carton is to be used the protective tape is removed, thus exposing the adhesive glue, and the carton is then assembled, as mentioned above.

A well-known metal fastening means having a form shown at 38 in FIGURE 4 may be used also.

The preferred embodiment of this invention may take on various shapes, one of which, a triangular carton, is shown in FIGURE 10 by way of example and not limitanon.

A modified form of this invention, as seen in FIGURE 8, is formed from a first panel 49 providing a top wall, a second panel 42 providing a bottom wall, and a third panel 44 providing a sufiicient number of side walls to form a completely closed carton in which each wall is of substantially uniform thickness throughout its entirety. In this form, the panel 44 is first closed upon itself and joined by suitable means. The closed side walls carrying self-adhering glue on their edges are then pressed onto the glue-bearing portion of the bottom wall and the first panel providing the top wall is pressed on after the carton is filled.

Another modification, as shown in FIGURE 9 is formed from a first panel 46 providing a top wall, and a second panel 48 providing a bottom wall and a side wall, and a third panel 59 providing sufiicient side walls to form a completely closed carton. Panel 48 has a band of selfadhering glue applied to one surface. This band is substantially the same width as the thickness of the panels 46 and 50. Panel 50 has this same self-adhering glue applied to its entire peripheral edge and panel 46 has the glue applied in a peripheral band on one surface. The carton is assembled by folding panel 5% into a U-shaped member and pressing it onto the bottom wall provided by panel 48. The side wall provided by panel 48 is folded up to engage the ends of U-shaped panel 54), thereby completing the carton except for the top wall which is pressed on after the carton is filled.

Still another modification of this invention is shown in FIGURES 5, 6 and 7 wherein an inside section 52 of the carton fits snugly within a slightly larger outside section 54 to form a double panel side wall carton. In the form shown, inside section 52 is formed from two panels 56 and 58, panel 56 providing a bottom wall and a side wall egree and panel 58 providing three side walls. Outside section 54 is formed from two panels 61) and 62, panel providing a top wall and a side wall and panel 62 providing three side walls. The panels have self-adhering glue suitably applied so the panels form a carton. After assembling the inner section 52, it is filled and the slightly larger outer section 54 is placed over it to form a completely closed carton. This double side walled carton may, of course, be formed in different ways, such as, for example, by utilizing an inner section formed from panels 42 and td shown in FIGURE 8 and an outer section formed in the same manner from slightly larger, but similar panels.

As shown in FIGURES 12, 13, and 14, a modified form of the present invention may have trapezoidal shaped end walls 64. The carton is constructed from a first panel shown generally at 66 which is suitably cut and. scored to form a bottom wall 68, a pair of side walls 76 and '72 and a top wall '74. In the form shown, the end walls 64 are each a separate trapezoidal shaped panel, but one or both of them may be formed integral with the panel 66. Liquid latex glue is applied to the edges of the end walls 64 and to the top edge of side wall 70. A band of the glue 76 is also applied to a portion of one surface of panel 66 as shown in FIGURE 13. The carton may be constructed from four panels so that the top wall 7 is a separate panel or the carton need have no top Wall at all.

This form of carton is especially well adapted to be assembled by the manufacturer and then shipped to the user because these cartons can be nested together as shown in FIGURE 14. When the user receives the cartons, he need only fill them and press the cover down onto the glued edges of the upstanding walls.

I claim:

1. A paperboard carton comprising: a panel defining a top wall; a panel defining bottom a wall; a plurality of panels defining side walls; and means for securing said panels together to form a completely closed carton, each of said walls being of a single panel and of substantially uniform thickness throughout its entirety.

2. A paperboard carton comprising: a first panel having lines of scoring thereon to divide the panel into a top wall, a bottom wall and a side wall; a second panel having lines of scoring thereon to provide a sufficient number of side walls to form a closed carton; and means for securing said first and second panels together to form a completely closed carton, each of said walls comprising a Single panel and being of substantially uniform thickness throughout its entirety.

3. A paperboard carton comprising: a first panel having lines of scoring thereon to divide the panel into a top wall, a bottom wall, and a side wall; a second panel having lines of scoring thereon to provide a sufficient number of side walls to form a closed carton, said panel having a peripheral edge; and means for securing said first and second panel together including a coating of self-adhering material on a portion of one surface of said first panel and a coating of said self-adhering material on the peripheral edge of said second panel so as to form a completely closed carton by firmly pressing together the coated portions of said panels, each of said walls forming the carton being of substantially uniform thickness throughout its entirety.

4. A paperboard carton comprising: a first panel of a size cut to provide a top wall; a second panel of a size to provide a bottom wall; a third panel having lines of scoring thereon to provide a suflicient number of side walls to form a closed carton, said third panel having opposed ends and a peripheral edge; means for joining said opposed ends together; and means for securing said first and second panel to said peripheral edge of the third panel to form a completely closed carton, each of said walls forming said carton being of substantially uniform thickness throughout its entirety.

5. A paperboard carton comprising: a first panel having lines of scoring thereon to divide the panel into a bottom Wall and a side Wall; a second panel of a size to provide a top wall; a third panel having lines of scoring thereon to provide a sufficient number of side Walls to form a closed carton; and means for securing said first,

econd, and third panels together to form a completely closed carton, each of said Walls forming the carton being of substantially uniform thickness throughout its entirety.

6. A paperboard carton having an inside section and an outside section, comprising: a first rectangular panel having lines of scoring thereon to divide the panel into a bottom wall and an inside side wall; a second panel having lines of scoring thereon to provide three inside side walls; means securing said first and second panels together to form said inside section; a third rectangular panel having lines of scoring thereon to provide a top wall and an outside side wall; a fourth panel suitably scored and cut to provide three outside side walls; and means securing said third and fourth panels together to form said outside section, said inside section being adapted to fit snugly within said outside section to form a completely closed carton having double panel side walls.

7. A paperboard carton comprising: a first panel having lines of scoring thereon to divide the panel into a bottom Wall and a pair of side Walls; a second panel providing a first trapezoidal shaped end wall; a third panel providing a second trapezoidal shaped end wall; and means for securing said panels together to form a carton, each of said walls forming the carton being of substantially uniform thickness throughout its entirety.

8. A paperboard carton comprising: a first panel having lines of scoring thereon to divide the panel into a bottom wall, a pair of side walls, and a top wall, said top Wall being larger than said bottom Wall; a second panel providing a first trapezoidal shaped end wall; a third panel providing a second trapezoidal shaped end wall; and means for securing said first, second, and third panels together to form a completely closed carton, each of said walls forming said carton being of substantially uniform thickness throughout its entirety.

9. The paperboard carton of claim 8 wherein said panels are provided with continuous linear uninterrupted edges.

10. A paperboard carton comprising: a first panel hay ing lines of scoring thereon to divide the panel into a top wall, a bottom wall, and a side wall; a second panel having lines of scoring thereon to provide a sufiicient number of side walls to form a closed carton, said first and second panel outer configurations being defined by pairs of substantially parallel edges; and means for securing said first and second panels together to form a completely closed carton, each or" said Walls comprising a single panel and being of substantially uniform thickness throughout its entirety.

11. A paperboard carton comprising: a first panel havin lines of scoring thereon to divide the panel into a top wall, a bottom Wall, and a side wall, said first panel having a substantially rectangular configuration; a second panel having a substantially rectangular configuration and being provided With lines of scoring thereon to divide the panel into a suificient number of side walls to abut the peripheries of the top and bottom walls to form a closed carton, said panel having a peripheral edge; and means for securing said first and second panels together includin a coating of self-adhering material on a portion of one surface of said first panel and a coating of selfadhering material on the peripheral edge of said second panel so as to form a completely closed carton by firmly pressing together the coated portions of said panels, each of said walls forming the carton being of substantially uniform thickness throughout its entirety.

12. A paperboard carton, comprising: a first panel having substantially straight peripheral edges and being provided with lines of scoring on the face thereof to provide a top Wall, a bottom wall, and a side wall; a second panel having substantially straight uninterrupted peripheral edges and being provided with lines of scoring thereon to provide a sufiicient number of side walls to abut the peripheral edges of the top and bottom walls to form a closed carton; and means for securing said panels together including adhesive material on the portion of one surface or" said first panel and on the peripheral edge of said second panel so as to form a completely closed carton by firmly pressing together the coated portions of said panels, each of the walls forming the carton being of substantially uniform thickness throughout its entirety.

l3. The carton of claim 12 wherein said edges of said first and second panel include two pairs of substantially parallel edges.

References Cited by the Examiner UNITED STATES PATENTS 1,897,826 2/33 Stokes 229-23 2,034,469 3/ 36 Howard 22949 2,084,965 6/37 Wolf 22949 2,186,973 1/40 Hothersall 22951 2,208,268 7/40 Snyder 229-23 2,998,180 8/61 Dehoney 229-98 FOREIGN PATENTS 20,452 1898 Great Britain.

FRANKLIN T. GARRETT, Primary Examiner, 

3. A PAPERBOARD CARTON COMPRISING: A FIRST PANEL HAVING LINES OF SCORING THEREON TO DIVIDE THE PANEL INTO A TOP WALL, A BOTTOM WALL, AND A SIDE WALL; A SECOND PANEL HAVING LINES OF SCORING THEREON TO PROVIDE A SUFFICIENT NUMBER OF SIDE WALLS TO FORM A CLOSED CARTON, SAID PANEL HAVING A PERIPHERAL EDGE; AND MEANS FOR SECURING SAID FIRST AND SECOND PANEL TOGETHER INCLUDING A COATING OF SELF-ADHERING MATERIAL ON A PORTION OF ONE SURFACE OF SAID FIRST PANEL AND A COATING OF SAID SELF-ADHERING MATERIAL ON THE PERIPHERAL EDGE OF SAID SECOND PANEL SO AS TO FORM A COMPLETELY CLOSED CARTON BY FIRMLY PRESSING TOGETHER THE COATED PORTIONS OF SAID PANELS, EACH OF SAID WALLS FORMING THE CARTON BEING OF SUBSTANTIALLY UNIFORM THICKNESS THROUGHOUT ITS ENTIRETY. 